New Panther A video
#1
Thread Starter

My Feedback: (1)
I corrected the deteriorated steering I experienced while creating the last video. I found that the steering servo was failing
as well as the mounting. Replaced it with a Savox 1256 TG servo in an aluminum mount I made. I began the video with the model
at rest. After starting the engine I shifted through 1st and 2nd gear and reverse. I apologize for the snap turns as I was only using one
hand on the transmitter.
Jerry
[link=http://www.youtube.com/watch?v=kVDHM33Rvl4&list=UUYZVS7tsq6UCiI6JNcDQWRQ& index=1&feature=plcp]1/10 Panther video[/link]
as well as the mounting. Replaced it with a Savox 1256 TG servo in an aluminum mount I made. I began the video with the model
at rest. After starting the engine I shifted through 1st and 2nd gear and reverse. I apologize for the snap turns as I was only using one
hand on the transmitter.
Jerry
[link=http://www.youtube.com/watch?v=kVDHM33Rvl4&list=UUYZVS7tsq6UCiI6JNcDQWRQ& index=1&feature=plcp]1/10 Panther video[/link]
#5
Thread Starter

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ORIGINAL: tapkoote
tanque I have a newbie question for you is that tank gas powered? Is there a build thread? tap
tanque I have a newbie question for you is that tank gas powered? Is there a build thread? tap
Came to realize much of the information you seek could also be found in these previous threads:
[link=http://www.rcuniverse.com/forum/m_10576229/anchors_10576478/mpage_1/key_/anchor/tm.htm#10576478]thread 1[/link]
[link=http://www.rcuniverse.com/forum/m_10883826/tm.htm]thread 2[/link]
Jerry
#6
Senior Member
Too bad you couldn't run that exhaust through some type of resonater to deepen the output. Love the exhaust output, and there is something very appealing about a gas powered tank.
Thanks for posting
Thanks for posting
#7
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From: PLACENTIA, CA
ORIGINAL: YHR
Too bad you couldn't run that exhaust through some type of resonater to deepen the output. Love the exhaust output, and there is something very appealing about a gas powered tank.
Thanks for posting
Too bad you couldn't run that exhaust through some type of resonater to deepen the output. Love the exhaust output, and there is something very appealing about a gas powered tank.
Thanks for posting
...or use a 4-cycle glow engine. Anyway, it's still awesome. You got some serious skills there Jerry.
#9
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From: Seattle,
WA
Thank you Jerry
I'm going to study that material, may have a question later.
The tank I'm looking to get is two stroke, water cooled, the electric start would be nice.
Pat
I'm going to study that material, may have a question later.
The tank I'm looking to get is two stroke, water cooled, the electric start would be nice.
Pat
#11
Thread Starter

My Feedback: (1)
ORIGINAL: torpedochief
Jerry that is a work of art and a wonder to look at!! Great job!!
Don
Jerry that is a work of art and a wonder to look at!! Great job!!
Don
Thanks Don and good to see you out in the forum!
Too bad you couldn't run that exhaust through some type of resonater to deepen the output. Love the exhaust output, and there is something very appealing about a gas powered tank.
you'll find a page where I did explore some exhaust designs because I do like to attenuate the sound, I can't abide the shrill high end
of a lean 2 cycle myself these days. Believe me this engine is moderate by comparison. I don't know if I'll take the time on this one to take it apart and replace the first stage of the exhaust system but I have a modified form of it using bronze wool packing that is somewhat effective.
That in tandem with the second stage of this one may attenuate the sound even better and still give decent performance.
...or use a 4-cycle glow engine.
a backfire is just an inconvenience but when you've got drive line and starter components attached to it backfires are way more than just annoying. Look at my first thread I referenced above for the account of running an OS 48 using CD ignition and gasoline. Backfires where a real problem until
I implemented TCSA. Then what killed it on gas is I could not keep it cool. Now water cooling would likely fix that but not many current production 4 cycle engines that will fit in a 1/10 scale model will lend themselves to a good
water cooled configuration. The radiator, fan and water pump are not the issue it's the shape of the cylinder; water cooling just the head isn't
nearly enough for safely. At one and the same time not wanting to either do major surgery to a $100 cylinder without a real plan or wanting to machine my own heads and cylinders I stick with the proven formula of what you see in the latest Panther video. I'll probably use 4 cycles in some models
but if they have the transmission /starter/ engine configuration as this one it will likely be powered by a Webra.
You have to remember I don't just have one of these gas powered tanks, I have 'a number' and I wanted a reproducible and consistent
engine package that I could rely on. The old Webra 6,5 ( 40 ) blackhead is it. Tough, powerful and durable. This engine is 31 years old.
I originally sold this model new when I had my business and was able to buy it back little used 5 years later and completely took it to pieces before rebuilding and repainting it. This one IS due for some serious detail upgrades but I'll defer it to when all my other projects are further along. I still have my original I bought in 1976-77 and it also runs well but the engine could use a new ring; it saw a LOT of running over the first 6 years I had it.
If you look over my website you'll see the other tank of mine with a 4 cycle, an OS .20 4 cycle - my little Hetzer. It runs well but isn't so quiet either.
There are some other modelers out there in the gas tank arena and some are running 4 cycles. They do sound a little different but hey they are
never going to sound like a Maybach. These are small engines producing their power at speeds many times that of a full size tank engine; it will
never happen. I now warn visitors to my website's video page that my models aren't going to sound like full size. To most they're going to sound
obnoxious but I don't pretend that they're anything but what they are. I don't want to offend people with the sound; I know there are those out there who
revel in being obnoxious, I'm not one of them. I like to attenuate the sound as I say but there's just limits to what you can do
and to a degree I've grown to appreciate the sound of one of my healthy engines running well. Rather like a proud dad watching junior ride
his bicycle..with playing cards clipped to the forks.
These things aren't always easy to set up taking patience ( I've cursed plenty ) and maintenance.
When I run out of patience I turn to my Tamiyas and others...
Jerry




